Silo or tank lug



H- C. RASS NN SILO 0R TANK L Filed Sept.

Patented Aug. 14,1928. g l 1,680,913

omen STATES PATENT O !moo G'RABSIANN, or BEAVER DAM, wrsconsm, ASSIGNOR TO r. RASSMANN IAJI'UI'AOTURING COMPANY, or BEAVER AM, WISCONSIN;

BILO OR TANK LUG. f

Application filed September 3,1925. Serial No. 54,303.

This invention relates to improvements in so as to close theends of the grooves 8 and 55 silo or tank lugs. that holes 15, 16, will be formed, the bot- One object of the invention is to so contom walls of said holes serving to support struct such a lug that it may be cast in a the end portions of the lugs. The ribs 11 I single piece without necessity for the use of and 12 at the ends of the lug members and cores, and with the use of a minimum uniting with the base 3 also serve to 60 amount of metal, at the same time possessing strengthen the lug and prevent breaking or adequate strength, and capability of propinjury to the same when subjected to strain. erly supporting the connected ends of the By constructing the lug as hereinbefore 1 tie rod, so that the tie rod can be readily described, the same may be readily cast passed through the lug,and so that the nuts Without cores, and the expense of manu- 65 on the threaded ends of the tie rod shall facture will therefore be reduced to a minihaveflat bearings. mum.

With this and other objects in view, the I prefer to so dispose the lug members 1 ll invention consists in certain novel features. and 2 that one end of one member will proof construction as hereinafterset forth and J'BCt beyond he opposite end of the other 7 oint d out in th lai member. This insures the proper threading In the accompa yi g drawi of the tie rod through said member. The

Figur 1 i a vi w i l ngit di l ti n end of each lug member having the rib 11 and partly in elevation illustrating an emand Whlch P J S beyond the opposite end bodi t of my i nti n; of the other member is beveled so that the 75 Fi 2 i b tto l i w; ribs 11 Wlll present inclined faces 18, against 7 Fi 3 i an d i w; whlch, nuts 19 on the threaded ends 20 of Figure 4 is a transverse sectional view; the file l 1l h ve flat bearings.

Figure 5 is a erspective view, and By constructing the lug as herein de- F glue 6 i a ragmentary ti l i scribed, the same may be readily cast in a 90 M i d l i t f a i l t slngle plece without cores, and the expense i nd comprises t o int r l members 1, of manufacture will therefore be reduced to 2 disposed at reverse inclinations relatively a m1n1mum, but it- Wlll be understood that t h th a d aid members are f d the staggered relation of the lug members t id grooves 3, d th b 3 f th whereby one end of one member projects lug i for ed by id rib 4 and nd rib 5 beyond the opposite end of the other meni- Projections 6 may be rovided on the bas ber, 1s not essential to the casting of the lug 3 of the lug, preferab y near diametrically Without cores.

35 opposite corners thereof, and these projec- It will be noted that the flange or rib portions may be caused to become embedded in tions 13, 14, close the ends of the grooves 9 the material of the silo or tank to prevent 3 and have openings therethrough for the the lugfrom slip ing. passage of the ends of the tie-rod, there be- The bottom 0 each groove 3 may be ing no necessity for washers inasmuch as the 0 rounded and the outer side walls 7 of the securing nuts may be turned home directly members 1 and 2 are made inclined soas to against the inclined faces 18 of the flanges 95 flare laterally somewhat and the web 8 is 14, and there is ample support for the ends made tapering (in cross section), providing of the tie-rod to prevent them slipping inclined or flaring inner faces 9 for the inner down in the grooves. Moreover, the lines of sides'of the grooves 3, the inner faces 10 the lug are such that the holes through the of the side walls 7 forming the inclined or ends of the lug may be formed in the casting 10o flaring outer sides of said grooves. The web Without the use of cores. I thus simplify 8 may be made to terminate slightly above the manufacture of the lugs as well as the the plane of the base of the lug as shown work of securing the tie-rods. .It is also in Figure 4. to be noted that the lug is formed with a At respective ends of each member 1, 2, base portion bearing against the wall of the ribs 11, 12, are formed and these ribs are tank or silo over an appreciable area so that extended to and unite with the base 3 at the lug obtains a very substantial support the ends of the lug as indicated at 13,14, upon the wall.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. A lug of the character described made with diagonal grooves having unobstructed side walls, said lug also having end portions having holes, said end portions being beveled at such angle that the portionsof the walls of said holes which are farthest removed from the base of the lug shall be in planes inwardly removed from-the planes of those portions of the walls of said holes which are nearest the base of the lug, whereby the casting of the lug and the formation of the holes without the use of cores is facilitated. i

In testimony whereof, I have signed this specification.

i HUGO CL RASSMANN'. 

